Review Sheet Questions

Question 1

5 bony structures of the Sh. Complex

Answer 1

clavicle
humerus
scapula
sternum
rib cage

Question 2

3 joints of the Sh. complex

Answer 2

sternoclavicular
acromioclavicular
glenohumeral

Question 3

2 articulations/spaces of sh. complex

Answer 3

suprahumeral/subacromial

scapulothoracic

Question 4

Structures that comprise the Sh, girdle

Answer 4

clavicle
scapula
humerus
& all joints (AC,SC,GH)

Question 5

Function of the labrum

Answer 5

extends the glenoid fossa and keeps the humerus in place

Question 6

Define scapulohumeral rhythm

Answer 6

Coordinated mvt. between the scapulothoracic space & the sh. girdle.
(2:1) 2- glenohumeral, 1- scapulothoracic

Question 7

limited sternoclavicular motion limits what shoulder girdle motion

Answer 7

Sh. elevation

GH mvt. ABD & flexion

Question 8

Define a dermatome innervation

Answer 8

a region of skin innervated by a single spinal nerve (cervical nerve root) C6-C7-C8

Question 9

Define a cutaneous innervation

Answer 9

region of skin innervated from the terminal branches of the brachial plexus (MARMU)

Question 10

Differences between C6 and Median nerve damage

Answer 10

C6 will have paresthesia on the thumb and radial side of the forearm.
Median nerve damage paresthesia is on the thumb, index, and middle finger.

Question 11

Anterior sternoclavicular ligament

Answer 11

strong ligament that supports the weight of UE’s & prevents dislocation

Question 12

acromioclavicular ligament

Answer 12

weak ligament that is made up of superior and inferior compartments & prevents dislocation of the AC joint.

Question 13

coracohumeral

Answer 13

holds the head of the humerus in glenoid fossa & supports the upward portion of the humeral head

Question 14

interclavicular ligament

Answer 14

strong ligament that limits depression of the sternoclavicular joint

Question 15

coracoacromial

Answer 15

prevents upward dislocation of the humerus

Question 16

anterior glenohumeral ligaments

Answer 16

provide weak support for the glenohumeral joint

Question 17

Articular disk (function & location)

Answer 17

located in the sternoclavicular joint. serve as a hinge for motion & provide shock absorption at the sternoclavicular joint.

Question 18

Structures that lie in the superhumeral space & their clinical importance

Answer 18

Rotator cuff muscles (supraspinatous infraspinatous, subscapularis, teres minor) biceps, subdeltiod.
Compression can cause a shoulder impingement.

Question 19

closed pack position for the glenohumeral joint

Answer 19

ABD & ER

Question 20

Muscles located between the rib cage and scapula

Answer 20

subscapulairs & serratus anterior

Question 21

most superficial muscle on the posterior upper back

Answer 21

trapezius

Question 22

Describe scapular winging

Answer 22

posterior displacement of the veterbral border

Question 23

describe scapular tipping

Answer 23

the inferior angle of the scapula moves posteriorly while the superior border moves anteriorly

Question 24

function of the rotator cuff muscles during sh. flexior of ABD

Answer 24

stabilize the humerus in the glenohumeral joint

Question 25

muscle that lies on top of the rotator cuff's distal attachment

Answer 25

deltoid

Question 26

why are the deltoid and trapezius often reffered to as three different muscles

Answer 26

they are made up of three different sections of muscle fibers that all have different angles of pull

Question 27

Closing a window by pulling down | motion & mover

Answer 27

Sh. extension. | Posterior deltoid & latisimuss dorsi

Question 28

opening a window by pushing up | motion & mover

Answer 28

Sh. flexion | Anterior deltoid, biceps, & corocobrachialis

Question 29

carrying a suitcase | motion & mover

Answer 29

scapular elevation | upper trapezius * levator scapuluaris

Question 30

Combing the back of you hair | motion & mover

Answer 30

Sh. ER infraspinatous & teres minor Sh. ABD deltoid & supraspinatous

Question 31

Components of the brachial plexus

Answer 31

``` Roots Trunks Divisions Cords Terminal Branches ```

Question 32

Formation of the roots

Answer 32

C5-T1

Question 33

formation of the trunks

Answer 33

upper, middle, & lower

Question 34

formation of the divisions

Answer 34

anterior & posterior

Question 35

formation of the cords

Answer 35

lateral, medial, & posterior

Question 36

formation of the terminal branches

Answer 36

MARMU

Question 37

M.A.R.M.U.

Answer 37

``` musculocutaneous axillary radial median ulna ```

Question 38

What cord is the radial nerve & why is it called the great extensor nerve

Answer 38

Posterior cord. | It innervates the extensor muscles of the elbow, wrist & fingers.

Question 39

"Saturday night palsy"

Answer 39

radial nerve by the elbow is compressed, extensor muscles are affected resulting in a wrist drop.

Question 40

Resting position for the scapula

Answer 40

3-8 inches from the spine between ribs 2 & 7

Question 41

Function of the arterial system

Answer 41

carries oxygen rich blood away from the heart.

Question 42

Function of the venous system

Answer 42

drainage system composed of veins to carry blood back to the heart.

Question 43

Function of the lymphatic system

Answer 43

draws excess tissue fluid from the body's interstitial fluid, filters it, then returns it to the blood stream thorough capilary filtration.

Question 44

Muscles innervated by the musculocutaneous nerves

Answer 44

biceps brachialias, corcobrachialis

Question 45

Muscles innervated by the axillary nerves

Answer 45

deltoid & teres minor